#!/usr/bin/gnuplot
set term postscript eps enhanced
set output "q4a.ps"
m = 10.042277
c = 8.70323181E-03
f(x) = m*x + c
set title sprintf("Slope=%g, intercept = 0", m)
plot "data.dat" u 1:2 w points notitle, \
f(x)